vortex entering rotating domain -- CFD Online Discussion Forums

July 21, 2015, 16:22

vortex entering rotating domain

Yannian

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Yolk

Join Date: Nov 2011

Posts: 38

Rep Power: 15

Dear Fluent users,
I have a case with stationary and roataing domains. A vortex starts from the stationary and enters the rotating domain. The vortex tube follows the free stream direction in the stationary domain, but it starts rotating in the opposite direction of the moving referecne frame (the vorticity isosurface is shown in the attachment). Does anybody has any idea why this happens?

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vortex_enter_rotating domain.jpg (19.7 KB, 9 views)

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multiple reference frames

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